GP 3000: I bought this piece of trash about 2 years ago. On making the purchase, thought It best I get a testing yard ready so's to help me identify different metals as well as their ringing tones. So I set about burying a gold kruger rand, purchased whilst on safari in africa, along with a couple of other gold items in one spot. About 5 meters away I bury silver then brass, copper etc. Each metal is buried separately 5 meters apart. I know you're all saying a bad worker always blames his tools but, this hoax of a machine seems to send out the same HAPPY signal for all metal types REGARDLESS OF SETTINGS- (I'm buggered from all the digging) and in desperately need of figuring out how to distinguish differences.
Anyone out there able to shed some light on where I'm going wrong